Adjustable support.



H T. WARE. ADJUSTABLE SUPPORT.

APPLICATION FILED MAY 17, I9I7- Patent-6d June 18; 1918.

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HOWARD 'I. WARE, OF EL PASO, TEXAS.

ADJUSTABLE SUPPORT.

Specification of Letters Patent.

Patented June 18, 1918.

Application filed May 17, 1917. Serial No. 169,243.

To all whom it may concern:

Be it known that I, HOWARD T. WARE, a citizen of the United States,residing at El Paso, Texas, have invented certain new and usefulImprovements in Adjustable Supports, of which the following is aspecification.

This invention relates to adjustable props or supports which areespecially useful in erecting forms for concrete construction or inscaffolding or in other analogous uses. The object 01" the invention isto improve and simplify the general construction of such a support andto provide in connection with other essential features an improved andsimplified clamp.

The advantages and characteristics of the invention will be suflicientlypointed out hereafter in connection with a detailed description of theaccompanying drawing, which shows one physical embodiment of theinvention. After considering this it will be evident to persons skilledin the art that the invention may be embodied in other forms, and I donot limit myself to details except as claimed hereinafter.

In the drawings:

Figure 1 is a front elevation of a prop embodying the invention;

Fig. 2 is a top plan;

Fig. 3 is a side elevation;

Fig. 4 is a top plan of one of the clamp elements;

Fig. 5 is a side elevation of the same;

Fig. 6 is an end elevation.

The support or prop is generally to be used in a substantially verticalposition, and for convenience words used herein to indicate relativepositions of parts will be used with reference to the normally verticalposition of the prop; but it will be understood that these words areused only for identification and not as limitations, and that the propmay be used in any position if conditions are suitable for such use.

The prop has a main upright A, at each side of which is placed anotherupright D. The two uprights D are connected at the bottom by transversepieces E which embrace the main upright. The uprights D are thus locatedclose to the main upright A but slidable in relation thereto. At the topof the adjustable uprights D is located a cross piece I" suitablysecured by diagonal braces G.

A clamp is provided, comprising two main members B. Each of these has abox-like portion H adapted to fit between the up rights D. Clamping awsI extend at each side from the central part of each clamping member.These jaw extensions have flanges K to overlap the outer edges of theuprights D. Each of the jaw members is also provided with clamping teethor ridges L adapted to bite into the front and rear faces of theuprights D. The clamping members are also provided with holes M throughwhich a bolt 0 passes, and a wing-nut or other suitable nut C isprovided to draw the clamping'members together.

When the prop is set up for use the central portions H of the clampmembers rest upon the top of the'upright A, as clearly indicated inFigs. 1 and 3. When the nut G is loose the adjustable upper portion ofthe prop is raised until it is in the proper position with reference tothe thing to be supported, and then the clamps are tightened y settingup the nut C, whereupon the clamping jaws L firmly engage the sides ofupright members D and hold the entire structure in its adjustedposition.

I claim:

1. In an adjustable prop or the like, the combination of two relativelymovable members, one of which comprises two uprights slidably arrangedat opposite sides of the other member, means connecting said uprights tomove together, and a clamp adapted to rest against the end of the;central member and having means to engage opposite sides of each of saiduprights, to hold the two members in adjusted position.

2. The same as claim 1 with the addition that the clamp comprises twomembers each having central portions adapted to rest upon one of theprop members and each having lateral extensions provided with clampingridges to bite the edges of the two uprights, the clamp also comprisinga bolt and nut for drawing the two members together.

HOWARD T. WARE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of ratents. Washington, D. G.

